CN212529229U - Suspension support structure - Google Patents
Suspension support structure Download PDFInfo
- Publication number
- CN212529229U CN212529229U CN202020737379.5U CN202020737379U CN212529229U CN 212529229 U CN212529229 U CN 212529229U CN 202020737379 U CN202020737379 U CN 202020737379U CN 212529229 U CN212529229 U CN 212529229U
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- Prior art keywords
- bearing
- axial direction
- upper support
- cylindrical portion
- support structure
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- 239000000725 suspension Substances 0.000 title claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000006096 absorbing agent Substances 0.000 claims abstract description 10
- 230000035939 shock Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims 1
- 101100495270 Caenorhabditis elegans cdc-26 gene Proteins 0.000 description 5
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Abstract
The utility model provides a suspension bearing structure. The suspension support structure includes an upper support body supporting an upper end portion of a piston rod of the shock absorber, an upper spring seat supporting an upper end portion of the coil spring, and a bearing disposed between the upper support body and the upper spring seat, wherein an axial direction of the bearing is inclined with respect to an axial direction of the shock absorber, and further includes a rubber pad disposed between the upper support body and the bearing, and the bearing is a resin member. Based on the above structure of the utility model, can prevent that the durability of resin system bearing from reducing.
Description
Technical Field
The utility model relates to a suspension bearing structure that vehicle was used.
Background
In the related art, a suspension support structure that supports an upper end portion of a suspension for a vehicle has been widely used. The suspension support structure includes an upper support body for supporting an upper end portion of a piston rod of the shock absorber, an upper spring seat for supporting an upper end portion of the coil spring, and a bearing disposed between the upper support body and the upper spring seat. And, the axial direction of the bearing is inclined to the axial direction of the damper.
However, when a lightweight and inexpensive resin bearing is used, there is a gap between the upper support and the bearing, and the upper support and the bearing collide with each other during vibration, which may reduce the durability of the bearing.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a suspension support structure capable of preventing a reduction in durability of a resin bearing.
As a technical solution to solve the above technical problem, the present invention provides a suspension support structure, which includes an upper support body for supporting an upper end portion of a piston rod of a shock absorber, an upper spring seat for supporting an upper end portion of a coil spring, and a bearing disposed between the upper support body and the upper spring seat, wherein an axial direction of the bearing is inclined to an axial direction of the shock absorber, the suspension support structure characterized in that: the bearing is a resin member and is provided with a rubber pad disposed between the upper support and the bearing.
The utility model discloses an above-mentioned suspension bearing structure's advantage lies in, through filling the clearance between upper portion supporter and the bearing with the cushion, can prevent that the durability of resin system bearing from reducing.
In the above suspension support structure of the present invention, preferably, the upper support body includes a bush housing portion for housing a bush for fixedly holding the piston rod, and a mounting surface portion mounted on the vehicle body; the mounting surface portion is configured to extend outward from the bushing housing portion and is arranged perpendicular to an axial direction of the bearing; the rubber pad includes a cylindrical portion disposed between the bush housing portion and the bearing, and a flange portion disposed between the mounting surface portion and the bearing; the cylindrical portion is configured such that a center line of a cylinder surrounded by an inner peripheral surface thereof extends in an axial direction of the damper, and a center line of a cylinder surrounded by an outer peripheral surface thereof extends in the axial direction of the bearing; the flange portion is configured to extend outward from an upper end of the cylindrical portion, and is arranged perpendicular to an axial direction of the bearing.
In the suspension support structure in which the rubber pad includes the cylindrical portion and the flange portion, it is preferable that a plurality of thin portions spaced apart from each other at predetermined intervals in the circumferential direction are formed on the inner circumferential surface of the cylindrical portion; the thin portion is provided to form a gap between the rubber mat and the upper support; the boundary between the cylindrical portion and the flange portion is configured to form a gap between the rubber pad and the bearing.
In the above-described suspension support structure in which the rubber pad includes the cylindrical portion and the flange portion, it is preferable that an inclined portion is formed at a lower end portion of an outer peripheral surface of the cylindrical portion, and the inclined portion is configured to guide the bearing when the bearing is assembled.
In the above-described suspension support structure in which the rubber mat includes the cylindrical portion and the flange portion, it is preferable that a protruding portion protruding upward for positioning the rubber mat on the upper support is formed on an upper surface of the flange portion.
Drawings
Fig. 1 is a cross-sectional view showing a suspension support structure according to an embodiment of the present invention.
Fig. 2 is a perspective view (when viewed from the upper side) of the cushion of the suspension support structure shown in fig. 1.
Fig. 3 is a perspective view (as viewed from the lower side) of the rubber mat shown in fig. 2.
Fig. 4 is an enlarged cross-sectional view of a region R of the suspension support structure shown in fig. 1.
Detailed Description
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, a suspension support structure 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 3.
The suspension support structure 100 is used to support the upper end portion of the suspension for a vehicle. Here, the vehicle suspension is a cradle type suspension, and includes a damper and a coil spring 60.
The damper functions to damp vibrations, and includes a cylinder (not shown) and a piston rod 50 reciprocating in the cylinder. The lower end of the cylinder is connected to a knuckle (not shown) that supports a wheel (not shown) so that the wheel can rotate. The knuckle is rotatably provided on the lower arm by a ball joint, not shown. The upper end of the piston rod 50 is supported by the upper support 1. The connecting line between the shock absorber installation center point and the spherical joint on the upper support body 1 is a king pin axis Ak which is a steering center shaft of the wheel.
The coil spring 60 is sandwiched in a compressed state between a lower spring seat (not shown) and the upper spring seat 2, and a damper is disposed inside thereof. The lower spring seat is mounted on the outer peripheral surface of the cylinder. The upper spring seat 2 is fixedly held on the upper support body 1 by a bearing 3. That is, the suspension support structure 100 is an input separation type, and receives the input from the shock absorber and the input from the coil spring 60 by two systems independent of each other. The input separation type can improve driving comfort compared to the input integration type.
In addition, an extending direction (i.e., an axial direction) Dr of the axis Ar of the bearing 3 is inclined to the axial direction Ds of the damper shaft As. Specifically, the bearing 3 is arranged such that its axis Ar coincides with the king pin axis Ak. By making the axis Ar of the bearing 3 coincide with the kingpin axis Ak, the steering stability can be improved As compared with a structure in which the axis Ar of the bearing 3 coincides with the damper shaft As.
As shown in fig. 1, a suspension support structure 100 for supporting a vehicle suspension includes an upper support body 1, an upper spring seat 2, a bearing 3, and a cushion 4.
The upper support 1 is a support member that supports an upper end portion of a vehicle suspension, and is attached to the vehicle body 150. The upper support 1 has an upper plate 11, a lower plate 12, and a bush 13. The bush housing portion 14 and the mounting surface portion 15 are formed by joining the upper plate 11 and the lower plate 12 together.
The bushing accommodating portion 14 is formed in a hollow cylindrical shape and has an internal space S. Through holes 14a penetrating in the axial direction Ds of the damper are formed in the middle portions of the upper plate 11 and the lower plate 12 of the bushing housing 14. A bush 13 is fitted in the internal space S. The bush 13 is, for example, a rubber member, and is used to fixedly hold the upper end portion of the piston rod 50. Specifically, the bushing 13 supports the link mounting portion 131, and the upper end portion of the piston rod 50 is mounted on the link mounting portion 131. The piston rod 50 fixed to the bush 13 extends downward from the inner space S of the bush housing 14 through the lower through hole 14 a. A rebound stopper 5 is provided around the piston rod 50 at the lower portion of the bush housing 14.
The attachment surface portion 15 is configured to extend outward from the hub accommodating portion 14 and surround the outer periphery of the hub accommodating portion 14. The mounting surface portion 15 is mounted to the vehicle body 150 by bolts 151. The mount surface portion 15 is obliquely arranged so as not to be perpendicular to the axial direction Ds of the shock absorber. Specifically, the mounting surface portion 15 is located on a surface perpendicular to the axis Ar of the bearing 3.
The upper spring seat 2 is for fixedly holding the upper end portion of the coil spring 60. The upper spring seat 2 is formed in a circular ring shape and has an L-shaped cross section. Specifically, the upper spring seat 2 includes a cylindrical portion 2a and a flange portion 2b extending outward from an upper end of the cylindrical portion 2 a. The bushing receiving portion 14 is disposed inside the upper spring seat 2. An insulator 21 is provided between the upper spring seat 2 and the coil spring 60. The lower end of the cylindrical portion 2a is connected to the upper end of the dust cover 6.
The bearing 3 is a thrust bearing made of resin, and is disposed between the upper support 1 and the upper spring bearing 2. The bearing 3 is configured to receive the biasing force from the coil spring 60 while allowing the upper spring bearing 2 to rotate with respect to the upper support 1. The bearing 3 is disposed at an inclination such that the rotation surface is parallel to the mounting surface portion 15 as described above.
For example, the bearing 3 includes an upper case 31 made of resin, a lower case 32 made of resin, and a bearing sheet 33 made of resin. Upper case 31 and lower case 32 are formed in a circular ring shape and have an L-shaped cross section. The upper case 31 and the lower case 32 are assembled to be relatively rotatable. Upper support 1 is disposed above upper case 31, and upper spring seat 2 is disposed below lower case 32.
In the present embodiment, a rubber pad 4 is further disposed between the upper support 1 and the bearing 3. That is, the rubber pad 4 and the bearing 3 are disposed between the upper support 1 and the upper spring seat 2, the rubber pad 4 is located on the upper support 1 side, and the bearing 3 is located on the upper spring seat 2 side. In other words, the rubber pad 4 is fitted under the lower plate 12 of the upper support 1; the bearing 3 is embedded at the lower side of the rubber cushion 4; the upper spring seat 2 is fitted to the lower side of the bearing 3.
The rubber pad 4 has a function of filling the gap between the upper support 1 and the bearing 3, and also can adjust the position of the bearing 3 on the upper support 1. Fig. 2 is a perspective view of the rubber mat 4 as seen from the upper side, and fig. 3 is a perspective view of the rubber mat as seen from the lower side. As shown in fig. 1 to 3, the rubber pad 4 is formed in a circular ring shape and has an L-shaped cross section. Specifically, the rubber pad 4 includes a cylindrical portion 41 and a flange portion 42 extending outward from an upper end of the cylindrical portion 41.
The cylindrical portion 41 is disposed between the bush housing portion 14 and the bearing 3. That is, the bush housing portion 14 is disposed inside the cylindrical portion 41, and the bush housing portion 14 is surrounded by the cylindrical portion 41. The cylindrical portion 41 is disposed inside the bearing 3, and the cylindrical portion 41 is surrounded by the bearing 3.
The cylindrical portion 41 is configured such that a center line of a right circular cylinder surrounded by an inner peripheral surface thereof extends in the damper axial direction Ds (coincides with the damper shaft As), and a center line of a tapered cylinder surrounded by an outer peripheral surface thereof extends in the bearing 3 axial direction Dr (coincides with the axis Ar). In other words, the cylindrical portion 41 is configured such that the inner diameter dimension thereof is constant in the axial direction Ds; the outer diameter dimension thereof gradually decreases downward along the extending direction Dr of the axis Ar of the bearing 3. Therefore, the wall thickness of one side (the side in the D1 direction) of the cylindrical portion 41 becomes gradually thinner from the top down.
The flange portion 42 is disposed between the mounting surface portion 15 and the bearing 3. Therefore, the flange portion 42 is parallel to the mounting surface portion 15 and perpendicular to the axis Ar of the bearing 3.
As shown in fig. 2 and 3, a plurality of thin portions 43 are formed on the inner peripheral surface of the cylindrical portion 41 at predetermined intervals in the circumferential direction. Fig. 4 is an enlarged cross-sectional view of the region R in fig. 1. As shown in fig. 4, the thin portion 43 is provided to form a gap G1 between the rubber mat 4 and the upper support 1.
A boundary portion 44 (see fig. 3) between the cylindrical portion 41 and the flange portion 42 is configured to form a gap G2 (see fig. 4) between the rubber pad 4 and the bearing 3. As a specific example, the curvature of the lower surface side of the curved portion (boundary portion 44) of the rubber pad 4 having the L-shaped cross section is made larger than the curvature of the upper surface side of the curved portion of the bearing 3 having the L-shaped cross section. Thus, by making the curvature of the lower surface of the bent portion of the rubber pad 4 not coincide with the curvature of the upper surface of the bent portion of the bearing 3, the gap G2 can be formed between the lower surface of the bent portion of the rubber pad 4 and the upper surface of the bent portion of the bearing 3.
As shown in fig. 1, an inclined portion 45 is formed at the lower end portion of the other side (the side in the direction D2) of the outer peripheral surface of the cylindrical portion 41. The inclined portion 45 is used for guiding the bearing 3 when the bearing 3 is assembled. The inclined portion 45 is inclined to the tapered outer peripheral surface of the cylindrical portion 41, i.e., has an inclination greater than that of the tapered outer peripheral surface with respect to the axial direction Dr of the bearing 3.
In addition, a positioning hole (not shown) for positioning when the upper plate 11 and the lower plate 12 are connected is formed in the mounting surface portion 15 of the upper support 1. As shown in fig. 2, a projecting portion 46 projecting upward is provided on the upper surface of the flange portion 42. The protruding portion 46 is provided for positioning the rubber pad 4 on the upper support 1. The protruding portion 46 is provided at a position corresponding to the positioning hole, and is fitted into the positioning hole. When the rubber mat 4 is assembled to the upper support 1, the rubber mat 4 can be positioned on the upper support 1 by merely fitting the protruding portion 46 into the positioning hole.
< beneficial effects >
In the present embodiment, as described above, since the rubber pad 4 is provided between the upper support 1 and the bearing 3, the gap between the upper support 1 and the bearing 3 can be filled with the rubber pad 4, and therefore the upper support 1 and the bearing 3 can be prevented from colliding with each other during vibration, and the durability of the resin bearing 3 can be prevented from being lowered. Therefore, the resin bearing 3 can be used which is lightweight and inexpensive. Further, since the position of the bearing 3 on the upper support 1 can be adjusted by the rubber pad 4, a general bearing 3 having a symmetrical shape can be used. That is, it is not necessary to adopt an asymmetric bearing in order to dispose the bearing 3 obliquely to the upper support 1.
In addition, in the present embodiment, since the gap G1 is formed between the rubber pad 4 and the upper support 1 by forming the thin portion 43 and the gap G2 is also formed between the lower surface of the bent portion of the rubber pad 4 and the upper surface of the bent portion of the bearing 3, when the bearing 3 is pressed in at the time of assembling the bearing 3, the deformation of the rubber pad 4 can be absorbed by the gaps G1 and G2, and an excessive load can be prevented from acting on the bearing 3.
In the present embodiment, the inclined portion 45 is formed at the lower end portion of the cylindrical portion 41, so that the bearing 3 can be easily fitted when the bearing 3 is assembled.
In the present embodiment, the rubber mat 4 can be easily positioned on the upper support 1 by using the existing positioning holes by forming the protrusion 46 for positioning on the upper surface of the flange 42.
< other embodiments >
The embodiments disclosed herein are merely examples of various aspects of the present invention, and do not constitute a basis for limiting explanation. Therefore, the technical scope of the present invention is not to be interpreted only by the description of the above embodiments, but is defined by the description of the claims of the present invention. The technical scope of the present invention includes all modifications within the scope equivalent to the description of the claims of the present invention.
For example, in the above embodiment, the outer peripheral surface of the cylindrical portion 41 is enclosed as a tapered cylinder, but the present invention is not limited thereto, and the outer peripheral surface of the cylindrical portion 41 may be enclosed as a straight cylinder. That is, the outer diameter dimension of the cylindrical portion 41 may be constant in the axial direction Dr of the bearing 3.
Claims (5)
1. A suspension support structure including an upper support body that supports an upper end portion of a piston rod of a shock absorber, an upper spring seat that supports an upper end portion of a coil spring, and a bearing disposed between the upper support body and the upper spring seat, an axial direction of the bearing being inclined with respect to an axial direction of the shock absorber, characterized in that:
further comprises a rubber pad arranged between the upper support and the bearing,
the bearing is a resin member.
2. The suspension support structure of claim 1, wherein:
the upper support body comprises a bush accommodating part for accommodating and fixing a bush for holding the piston rod, and an installation surface part installed on a vehicle body;
the mounting surface portion is configured to extend outward from the bushing housing portion and is arranged perpendicular to an axial direction of the bearing;
the rubber pad includes a cylindrical portion disposed between the bush housing portion and the bearing, and a flange portion disposed between the mounting surface portion and the bearing;
the cylindrical portion is configured such that a center line of a cylinder surrounded by an inner peripheral surface thereof extends in an axial direction of the damper, and a center line of a cylinder surrounded by an outer peripheral surface thereof extends in the axial direction of the bearing;
the flange portion is configured to extend outward from an upper end of the cylindrical portion, and is arranged perpendicular to an axial direction of the bearing.
3. The suspension support structure of claim 2, wherein:
a plurality of thin portions formed at predetermined intervals in a circumferential direction on an inner peripheral surface of the cylindrical portion;
the thin portion is provided to form a gap between the rubber mat and the upper support;
the boundary between the cylindrical portion and the flange portion is configured to form a gap between the rubber pad and the bearing.
4. The suspension support structure of claim 2, wherein:
an inclined portion is formed at a lower end portion of an outer peripheral surface of the cylindrical portion, and the inclined portion is configured to guide the bearing when the bearing is assembled.
5. The suspension support structure of claim 2, wherein:
a protruding part protruding upwards is formed on the upper surface of the flange part,
the protrusion is used to position the rubber mat on the upper support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737379.5U CN212529229U (en) | 2020-05-07 | 2020-05-07 | Suspension support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737379.5U CN212529229U (en) | 2020-05-07 | 2020-05-07 | Suspension support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212529229U true CN212529229U (en) | 2021-02-12 |
Family
ID=74540019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020737379.5U Active CN212529229U (en) | 2020-05-07 | 2020-05-07 | Suspension support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212529229U (en) |
-
2020
- 2020-05-07 CN CN202020737379.5U patent/CN212529229U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |